Olukoya D K, Oni O
National Institute for Medical Research, Lagos, Nigeria.
Epidemiol Infect. 1990 Aug;105(1):59-64. doi: 10.1017/s0950268800047646.
In an epidemiological survey, plasmid profiles and antimicrobial susceptibility testing of 100 shigella isolates in Lagos, Nigeria was done. All the isolates were sensitive to nalidixic acid, nitrofurantoin and ciprofloxacin. The commonest antimicrobial susceptibility pattern was resistance to ampicillin, colistin sulphate, co-trimoxazole, streptomycin and tetracycline. All but 4 of 100 isolates screened contained one or more plasmids. Plasmid profile analysis distinguished more strains than did antimicrobial susceptibility patterns. A total of 36 isolates was able to transfer resistance plasmids to Escherichia coli K-12 by conjugation. Using in vitro transformation, seven isolates transferred resistance. These plasmids specified resistance to tetracycline, streptomycin, sulphonamide, trimethoprim and ampicillin.
在一项流行病学调查中,对尼日利亚拉各斯的100株志贺氏菌分离株进行了质粒图谱分析和药敏试验。所有分离株对萘啶酸、呋喃妥因和环丙沙星敏感。最常见的药敏模式是对氨苄西林、硫酸多粘菌素、复方新诺明、链霉素和四环素耐药。在筛选的100株分离株中,除4株外,其余均含有一个或多个质粒。质粒图谱分析比药敏模式能区分更多菌株。共有36株分离株能够通过接合将耐药质粒转移至大肠杆菌K-12。通过体外转化,7株分离株转移了耐药性。这些质粒赋予对四环素、链霉素、磺胺类、甲氧苄啶和氨苄西林的耐药性。